CRISPR diversity in brine pools of the Red Sea: a comparative study of clustered regularly interspaced short palindromic repeats from the Red Sea metagenomes

Exploration of CRISPR/Cas systems in the unique Red sea Brine pools can provide insights into host-viral interactions in highly extremophile environments. 454 Metagenomic datasets from different strata of Atlantis II, Discovery deep and Kebrit deep brine pools were mined for CRISPR arrays, and Cas proteins and compared to one another. Overall composition of CRISPR types was inferred by Cas protein HMM data, together with Cas1 phylogenetic placement using RaxML and direct repeat typing. Spacerâ viral interaction was explored using local alignments of mined spacer data to local metagenomic prophage sequences, showing and comparing specific sample CRISPR affected viral occurrences as well as host spacer efficiency. Host prediction was also attempted through the use of the CRISPI database. Results suggest an abundance of Type I CRISPRs and an under representation of Type III CRISPRs throughout our datasets. Type II CRISPRs appear to more readily occupy transitional layers of brine pools. Discovery and Kebrit lower convective brine pool layers appear to show stable biological isolation as reflected by the proportions of representative spacers and affected viral taxa, whereas Atlantis II appears to be more chaotic in nature. 72% of spacers described are of unknown origin, and ~60% appear to be ineffective in the datasets they are found. Results shown here concur with previous physical studies that indicate isolation of the Red Sea brine pools, and offer new insight into the changing nature of host virus interactions in the Red Sea brine pools

The 5/95 Gap on the dissemination of mental health research: The World Psychiatric Association (WPA) task force report on project with editors of low and middle income (LAMI) countries.

The World Psychiatric Association (WPA) Task Force and a small group previously convened by the WPA publications committee initiated three activities between 2006-2008 that aimed to respond to the need for greater support for psychiatry journals in LAMI countries. In a joint venture with participants from the Global Mental Health Movement the Task Force editors from LAMI countries in Africa, Asia, Eastern Europe and Latin America were contacted to identify potential journals to target for indexation (Medline and ISI). The committee analyzed the editors' applications on the following criteria: a) geographical representativeness; b) affiliation to a professional mental health society; c) regular publication of at least 4 issues per year over the past few years; d) comprehensive national and international editorial boards; e) publication of original articles, or at least abstracts, in English; f) some level of current indexation; g) evidence of a good balance between original and review articles in publications; and h) a friendly access website. The committee received 26 applications (11 from Latin America, 7 from Central Europe, 4 from Asia and 4 from Africa), and selected 8 journals, 2 from each geographical area, on the basis of the overall scores obtained for the items mentioned, to participate in an editors meeting held in Prague in September 2008. The aims of the committee are twofold: a) to concentrate support for those selected journals; and b) to assist all LAMI mental health editors in improving the quality of their journals and fulfilling the requirements for full indexation. This report summarizes the procedures conducted by the committee, the assessment of the current non-indexed journals, and offers suggestions for further action